PEMILIHAN TYPE & KELAS PONDASI SOIL CLASS
CLASS 1 ( L )
CLASS 2 ( M )
SOIL CONDITION/ TYPE OF SOIL
Tanah yang sangat bagus, tanah liat yang padat/ pasir padat
Tanah yang bagus, tanah liat rapat/ media pasir padat
GR RO OU UN N D W A TE TE R
W i th th ou ou t G ro rou nd nd W at at er er
W i th th ou ou t G ro rou nd nd W at at er er
TYPE OF FOUNDATION
Pondasi Normal & Chimney
Pondasi Normal & Chimney
KAPASITAS DUKUNG YANG DIIJINKAN
2,5 ≤ qall < 5 kg/cm
BEARING CAPACITY READING FROM DUTCH CONE PENETRATION TEST
75 ≤ qc < 150 kg/cm
FRUSTUM ANGLE WEIGHT OF WET SOIL WEIGHT OF SOIL SUBMERGE
2
2
20°
CLASS 3 ( H )
1,2 ≤ qall < 2,5 kg/cm
36 ≤ qc < 75 kg/cm
Kondisi tanah normal, Kondisi tanah normal, dengan tanah liat rapat dengan tanah liat rapat hingga lunak/ hingga lunak/ berlumpur/ kerapatan kerapatan berlumpur/ kerapatan kerapatan pasir kecil pasir kecil W i th th ou ou t G ro rou nd nd W at at er er Pondasi Normal & Chimney
2
2
0,7 ≤ qall < 1,2 kg/cm
2
21 ≤ qc < 36 kg/cm
15° 3
CLASS 3W ( HH )
10° 3
W i th th G ro rou nd nd W a te te r
0,7 ≤ qall < 1,2 kg/cm
21 ≤ qc < 36 kg/cm
5° 3
3
2
CLASS 5
CLASS 6
CLASS 7
Tanah bebatuan homogen
Kondisi tanah buruk, tanah liat lunak, dan berlumpur
Tana Tanah h sang sangat at luna lunak k
Batu Batuan an kera keras/ s/ma masi sif f
W i th th ou ou t G ro rou nd nd W at at er er
W i th th G ro rou nd nd W at at er er
Pondasi Normal & Pondasi Raft atau Chimney atau Pondasi perluasan Pondasi Pad Blok & Chimney
Pondasi Normal & Chimney 2
CLASS 4
2
With or without Ground Water
With or without Ground Water
Pondasi Tiang Pancang atau Pondasi Sumuran atau Bored Pile
Pondasi Angkur
2
q al al l ≥ 5 kg kg /c /c m2 m2
0 ,5 ,5 ≤ qa qa llll < 0, 0, 7 kg kg /c /c m2 m2
qall < 5 kg/cm
qc ≥ 150 kg/cm2
15 ≤ qc < 21 kg/cm2
qc < 150 kg/cm
0°
0° 3
3
2
qall > 6 kg/cm
2
qc > 180 kg/cm
0°
≥ 30°
1600 kg/m
1600 kg/m
1600 kg/m
1950 kg/m
2000 kg/m
1950 kg/m
-
-
-
-
-
,
-
950 kg/m
3
-
-
CONCRETE unit weight of c oncrete with reinforcement unit weight of c oncrete with reinforcement covering of reinforcement reinforcement covering of reinforcement reinforcement in the chimney
according to DIN 1045 3 24.00 [ kN/m ] 22.00 0.075 0.05
for pad & chimney, raft foundation 2 design strength after 28 days σ28 = 17,5 MN/m
3
[ kN/m ] [m] [m]
REINFORCEMENT STEEL yield point of the reinforcing steel
BSt 420/500 2 ßs = 41,5 kN/cm
ribbed
PILES
Steel grade SS400 ßs = 250 N/mm
for pile caps, connection beam, anchor pile cap and other concrete structure 2 design strength after 28 days σ28 = 22,5 MN/m or equivalent
2
mansur
2
